src/drivers/gfx/generic/chip.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __DRIVERS_GFX_GENERIC_CHIP_H__
   4 #define __DRIVERS_GFX_GENERIC_CHIP_H__
   5
   6 #include <acpi/acpi_device.h>
   7
   8 /* Config for electronic privacy screen */
   9 struct drivers_gfx_generic_privacy_screen_config {
  10         /* Is privacy screen available on this graphics device */
  11         int enabled;
  12         /* ACPI namespace path to privacy screen detection function */
  13         const char *detect_function;
  14         /* ACPI namespace path to privacy screen status function */
  15         const char *status_function;
  16         /* ACPI namespace path to privacy screen enable function */
  17         const char *enable_function;
  18         /* ACPI namespace path to privacy screen disable function */
  19         const char *disable_function;
  20         /*
  21          * GPIO used for controlling the privacy screen. If provided,
  22          * the gpio mechanism takes preference over the functions ptrs
  23          * above, if any (GPIO functions override the function ptrs).
  24          */
  25         struct acpi_gpio gpio;
  26 };
  27
  28 /* Config for an output device as defined in section A.5 of the ACPI spec */
  29 struct drivers_gfx_generic_device_config {
  30         /* ACPI device name of the output device */
  31         const char *name;
  32         /* Value to use for _HID Name, will take precedence over _ADR */
  33         const char *hid;
  34         /* The address of the output device. See section A.3.2 */
  35         unsigned int addr;
  36         /* Electronic privacy screen specific config */
  37         struct drivers_gfx_generic_privacy_screen_config privacy;
  38 };
  39
  40 /* Config for an ACPI video device defined in Appendix A of the ACPI spec */
  41 struct drivers_gfx_generic_config {
  42         /*
  43          * ACPI device name of the graphics card, "GFX0" will be used if name is
  44          * not set
  45          */
  46         const char *name;
  47         /* The number of output devices defined */
  48         int device_count;
  49         /* Config for output devices */
  50         struct drivers_gfx_generic_device_config device[5];
  51 };
  52
  53 #endif /* __DRIVERS_GFX_GENERIC_CHIP_H__ */